Lock for mail sacks



Feb. 17. 1925. 1,526,606

' w. M. MOLONEY LOOK FOR MAIL SACKS Filed May 28, 1923 Inventor [AM-M74?9M J M;

Patented Feb. 17, 1925.

rennet Parent WILLIAI /i Iv'I. MOLONEY, 9F TORONTO, ONTARIO, CANADA.

LOCK FDR MAIL SACKS.

Application filed May 28, 1923.

T 0 all whom it may concern:

Be it known that I, WILLIAM M. Monomav, a subject of the King of GreatBritain, and resident of the city of Toronto, county of York, Provinceof Ontario, in the Dominion of Canada, have invented certain new anduseful Improvements in a Lock for Mail Sacks, as described in thefollowing specification and illustrated in the accompanying drawingsthat form part of the same.

The principal objects of the invention are, to effectively lock the ropetying the sack and sealthe lock so that the mail contained thereincannot be tampered with.

A further object is to devise a form of fastener of very simpleconstruction which will be strong and durable and may be used with anyform of sack and which can be furnished at moderate cost. I

The principal features of the invention consist in the novelconstruction and arrangement of parts, whereby the sack rope is grippedand held securely by a pivotal gripping member loosely mounted on thepivotal lock carrying member and whereby the key orifice of the lock iseffectively covered by a seal which may be easily and quickly removed byauthorized persons.

In the drawings, Figure 1 is a perspective view of my improved sack lockshown in the closed position.

Figure 2 is a perspective view of the lock shown open.

Figure 3 is a pe'spective view of the pivotal rope jamming membershowing its arrangement on the lock member.

Figure 1 is a transverse section of the look through the pivot, theparts being in the position as illustrated in Figure 1.

Figure 5 is a longitudinal sectional and part elevational view of thelook.

In the use of locks for mail sacks there are two very important featuresto be considered. First, the importance of fastening the ropes so thatthey cannot be loosened to allow entrance to the sack and the otherimportant feature is to provide for the securing of the lock against itbeing opened by unauthorized persons.

In the accomplishment of this result the present invention has beendevised to cover both features.

The bottom section 1 is here shown formed up of sheet metal and having apair of side lugs 2 and a closing end lug 3, the

Serial No. 641.993.

latter having holes t through which the rope is rove.

immediately inside the lug :5 and between the side lugs 2 is arranged ahim-k 5 over which the rope passes.

it pivot pin 6 extends bet-ween the upper portions of the side lugs andon this pin is pivotally mounted a loop shaped member T. the cross bar 8of which is adapted to engage and jam against the rope 9. V

The lock case 10 is formed of sheet metal having end lugs 11 pivotallymounted on the pivot pin (1-, said lugs projertirur laterally at eachside of the pivotal end of the case and having the recesses to receivethe pivotal ends of the loop members 7, said loop member having acertain latitude of swinging movement in the recesses so that when thelock case is swung over the bottom section to the position shown inFigure 1 the forward notch of the side lugs of the case 10 engage theloop meinliier, swinging it downwardly into contact with the rope. Theloop is then free to swing further through the limits of the notch sothat the harder to lock is pulled the tighter the cam shaped loop memberwill jam the rope into contact with the block 5.

A rigid notched pin 13 is secured to the section 1 and is adapted to beengaged by a suitable locking mechanism contained within the case 10 soas to lock the pivotal member down when it has been pressed into place.

The lock is manipulated through a suitable key hole 14 but in order toprevent tmnpering with the lock a seal is provided. This seal is in theform of: a ribbon 15 of a suitable soft metal which extends across thekey hole and passes downwardly through the slots 16 in the sides of thecase 10. The ends of the ribbon pass under the lock case and extend overa pin 17, being secured on said pin by being perforated thereby.

The perforation of the sealing ribbon is effected by means of a die 18arranged on the bottom of the case adapted to receive the end of the pin17 so that when the lock case is closed the pin is forced into the die,cutting through the lead strip or ribbon 15 and thus fastening the sealin place.

The seal effectively closes the key hole so that a key cannot be enteredtherein or the lock picked without the seal being broken, consequentlynone but authorized persons may open the sack and intermediate personshanding the sack will be held responsible for the security of the seal.

In using the device when the bag is closed the rope is drawn tight. Astrip of lead is inserted through the slots 16 so that the portionbetween the ends covers the key hole. The ends are then brought togetherover the pin 14. hen this has been accomplished the lock case is broughtdown sharply on to the end portion to force the pin 17 into the diethrough the ribbon. The back of the section 1 is formed withlongitudinal flanges 19 to receive a destination card.

lVhat I claim as my invention is 1. A lock for mail sacks, comprising amember through which the tie ropes are rove, a cam member pivotallymounted on the aforesaid member and adapted to grip the rope, a memberpivotally mounted on the aforesaid member adapted to engage and forcesaid cam into gripping contact with the rope means for locking thelatter pivotal member in its closed position, and means for sealing thelock.

2. A look for mail sac-ks, comprising, a member through which the tieropes are rove, a cam member pivotally mounted on the aforesaid memberand adapted to grip the rope, a member pivotally mounted on theaforesaid member adapted to engage and force said cam into grippingcontact with the rope, means for locking the latter pivotal member tohold the cam in engagement with the ropes, and a ribbon seal extendingacross the key hole of the looking means and having its ends securedbetween the aforesaid pivotal members.

3. A look for mail sacks, comprising, a member through which the tieropes are rove, a cam member pivotally mounted on the aforesaid memberand adapted to grip the rope, a member pivotally mounted on theaforesaid member adapted to engage and force said cam into grippingcontact with the rope, means for locking said pivotal members together,a ribbon seal extending across the key hole of the lock and having tsends doubled under the locking member, a die arranged on one pivotalmember, and a punch arranged on the other pivotal member adapted topunch through the ends of the ribbon seal to secure it in place.

4. A lock for mail sacks, comprising a sheet metal member having a pairof side lugs, a pivot pin extending between said side lugs, a loopmember pivoted on said pivot pin and extending between the lugs, a lockcase having a pair of lugs pivoted on said pin, said lugs havingrecesses to receive the loop allowing it to swing on the pivot pinrelatively to the lock case, a transverse obstruction member adapted toco-operate with the cross bar of the loop memberto engage and grip therope, a lock stud rigidly secured in said sheet metal member, ailock inthe lock case, adapted to loekqon .said stud, and means for sealing thelock.

WILLIAM M. MOLONEY.

